# Calm SOS vs Impulse Mode

The clearest difference is in-app purchases: Impulse Mode at none against Calm SOS's 3. Calm SOS's advantage is device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. Calm SOS sells 3 in-app purchases, starting at $2.99 per 7 days. Impulse Mode asks for nothing beyond the download.

Calm SOS ships an update every 3 months, Impulse Mode every 2 months. The most recent releases landed on November 12, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Calm SOS | Impulse Mode |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 65 MB | 139 MB |
| Requires iOS | 17.6 | **16.4** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [THIERRY VICTOR E DE BELDER](https://appshunter.io/developer/1831371632) | [Michael Dawson](https://appshunter.io/developer/1519601474) |

## What reviewers say

### Calm SOS

[App page](https://appshunter.io/ios/app/calm-sos/id6751938184)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Monthly | $5.99 | per month |
| Yearly | $39.99 | per year |


### Impulse Mode

[App page](https://appshunter.io/ios/app/impulse-mode/id6761788816)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Calm SOS free?

Calm SOS is free to download, with in-app purchases available.

### Is Impulse Mode free?

Impulse Mode is free to download, with no in-app purchases.

### Do Calm SOS or Impulse Mode have ads?

Neither Calm SOS nor Impulse Mode shows ads.

### Which is updated more often, Calm SOS or Impulse Mode?

Calm SOS ships an update every 3 months, and Impulse Mode every 2 months. Most recently, Calm SOS was updated on November 12, 2026 and Impulse Mode on November 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*